CN104108799B - A kind of sulfate reduction bacteria immobilization fixed type biological active filler preparations and applicatio based on mesh carrier - Google Patents
A kind of sulfate reduction bacteria immobilization fixed type biological active filler preparations and applicatio based on mesh carrier Download PDFInfo
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- CN104108799B CN104108799B CN201410137192.0A CN201410137192A CN104108799B CN 104108799 B CN104108799 B CN 104108799B CN 201410137192 A CN201410137192 A CN 201410137192A CN 104108799 B CN104108799 B CN 104108799B
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- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title claims abstract description 58
- 241000894006 Bacteria Species 0.000 title claims abstract description 55
- 239000000945 filler Substances 0.000 title claims abstract description 32
- 230000009467 reduction Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 47
- 229910021653 sulphate ion Inorganic materials 0.000 claims abstract description 27
- 238000011049 filling Methods 0.000 claims abstract description 25
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 24
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- -1 polyethylene Polymers 0.000 claims abstract description 13
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004698 Polyethylene Substances 0.000 claims abstract description 7
- 239000004327 boric acid Substances 0.000 claims abstract description 7
- 229920000573 polyethylene Polymers 0.000 claims abstract description 7
- 239000004743 Polypropylene Substances 0.000 claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 claims abstract description 6
- 238000004132 cross linking Methods 0.000 claims abstract description 5
- 238000007731 hot pressing Methods 0.000 claims abstract description 5
- 239000012943 hotmelt Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 24
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 6
- 239000004800 polyvinyl chloride Substances 0.000 claims description 6
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 230000008520 organization Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 244000005700 microbiome Species 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000009740 moulding (composite fabrication) Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920001525 carrageenan Polymers 0.000 description 1
- 238000007444 cell Immobilization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000008558 metabolic pathway by substance Effects 0.000 description 1
- 244000005706 microflora Species 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- NGSFWBMYFKHRBD-UHFFFAOYSA-N sodium;2-hydroxypropanoic acid Chemical compound [Na+].CC(O)C(O)=O NGSFWBMYFKHRBD-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
Based on a sulfate reduction bacteria immobilization fixed type biological active filler preparations and applicatio for mesh carrier, belong to water treatment field.Fixed type biological active filler is by embedding body and carrier two portions form: carrier is with polyethylene, polypropylene etc. for main raw, and adds the netted fixed carrier of the water wetted materials such as polyvinyl alcohol through hot melt or sheet material hot pressing; The reticulated structure of carrier, can make embedding body run through mesh and carrier forms rivet clasp structure and increases filler resistance to overturning; Embedding liquid is mixed by sulphate reducing bacteria concentrated solution and polyvinyl alcohol solution and forms; Embedding liquid is spread evenly across on mesh carrier, forms embedding body after boric acid secondary crosslinking is fixing, and is incorporated into mesh carrier and obtains sulphate reducing bacteria biological active filling material.Biological active filling material prepared by the present invention, not only can effectively solve the problems such as sulphate reducing bacteria adhesive ability is poor, film-forming properties is poor, can also improve reactor for treatment ability, shortens start time.
Description
Technical field
The invention belongs to water treatment field, particularly a kind of sulfate reduction bacteria immobilization fixed type biological active filler preparations and applicatio based on mesh carrier.
Background technology
Utilizing sulphate reducing bacteria (Sulfate-ReducingBacteria, SRB) carry out in the treating processes of sulfate wastewater, the quantity of functional microorganism (mainly referring to sulphate reducing bacteria), metabolic activity and ecological factor directly affect the operation treatment efficiency of reactor.Due in the anaerobic treatment of sulfate wastewater, there is abundant carbon source (in waste water original or be process and the COD that adds) and suitable anaerobic condition, similar microorganism is assembled many site conditions, so how to keep the population superiority of SRB, suitable ecological factor and substrate competition advantage to be the research emphasis of srb assay process sulfate wastewater.At present, the main process of SRB process sulfate wastewater is utilized to have individual event anaerobic technique, individual event stripping process, diphasic anaerobic technique and bio membrane process.Traditional sulfate wastewater treatment technique also exists that the reactor start-up time is long, processing power is limited, SRB tack and film-forming properties poor, be difficult to form dominant microflora and there is the defects such as substrate competition with other anerobes, make it in actual applications there is limitation.In order to the deficiencies such as the adhesive ability improving SRB is poor, film-forming properties is poor and the shortcoming that the reactor start-up time is grown, many scholars start and utilize immobilized microorganism technology fix the experimental study of sulphate reducing bacteria and achieve certain achievement in research.
Microorganism cells immobilization technology can increase substantially biomass and the cell concn of functional microorganism in unit for treating water at short notice, the start time of reactor is shortened, microorganism number of dropouts reduce, the adaptive faculty that former water potential of hydrogen, toxicity, salinity etc. change obviously is strengthened.Utilize microorganism cells immobilization technology can create the ecological dominance of stable microorganisms with specific functions, produce directed substance metabolism process, demonstrate huge application prospect in water treatment field.Common microbial cell immobilization method has absorption method, crosslinking and entrapping method.Wherein, conventional with entrapping method, the material being successfully used to microorganism cells embedding has polyvinyl alcohol, agar, K-carrageenin, gelatin, sodium alginate, polyacrylamide, urethane etc.Above-mentioned embedded material have mass-transfer performance good, not easily by biological decomposition, stable performance, physical strength is high, long service life, price are low, to advantages such as microorganism are nontoxic.
At present, traditional bacterium embedding method research concentrate on how by bacterium with embedded material stable bond together with, form embedding body, such as microballoon, embedded block etc., although working method is simple, limitation comparatively greatly, cannot be desirable be applied in the middle of engineering reality.We improve on traditional embedding method through studying for many years, combine by embedding body and carrier, form overall biological active filling material.Embedding body and the combination of carrier, make biological active filling material have more performance, and it combines the advantage that simple microbial bacterial and embedded material have.
By the combination of embedding body and carrier, the biological active filling material prepared has huge application advantage and wide application space.The selective gist of filling-material structure form and immobilization technology directly determines effect and the work-ing life of biological active filling material.Compare through experimental study, we find that the biological active filling material prepared based on conventional filler structure formation and the embedding method effect in test application is difficult to accomplish the end in view, also exist biological active filling material resistance to overturning poor, embed body and easily come off and the problems such as water-soluble.For the problems referred to above, the sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier that a kind of resistance to overturning that we develop is good is with a wide range of applications.
Summary of the invention
The object of the invention is to develop a kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier, the active filler of immobilization fixed type biological is that cancellated rectangular pieces carrier is embedded by containing anaerobic ammonium oxidizing bacteria embedding body, and the twine forming cancellated rectangular pieces carrier is formed overall rivet clasp structure by sulphate reducing bacteria embedding body by mesh embedding.
The reticulated structure design of this biological active filling material carrier, embedding body is made to form overall rivet clasp structure by mesh and carrier, embedding body difficult drop-off, and embed physical efficiency on reticulated structure, form millimetre-sized membrane structure, make that good, the overall permeability of biological active filling material resistance to overturning that obtains is good, mass transfer effect is higher.In addition, biological active filling material is fixed in the reactor by skeleton construction supporter, and filler can not run off with current, and treatment effect is stablized.
In order to achieve the above object, present invention employs following technical scheme.
A kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier, it is characterized in that: based on polyethylene, polyvinyl chloride, polypropylene, ABS resin material, add 6wt%-9wt% polyvinyl alcohol (PVA) water wetted material, made the tridimensional network carrier of sheet shape by modes such as strand hot melt or sheet material hot pressing pore-formings; Described cancellated rectangular pieces carrier, long is 0.1-3m, and wide is 0.1-3m, and mesh is circle, rhombus, square, rectangle, the string diameter 0.5-2mm of mesh; Cancellated rectangle chip carrier is fixed in the embedding body embedding of Containing Sulfate Reducing Bacteria, and the twine forming cancellated rectangular pieces shape carrier is formed overall rivet clasp structure by the embedding body embedding by mesh; Embedding body forms millimetre-sized membrane structure on netted slab organization.
The preparation method of above-mentioned a kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier comprises following steps:
(1) based on polyethylene, polyvinyl chloride, polypropylene, ABS resin material, add the hydrophilizing agent PVA of 6%-9%, make cancellated rectangular pieces carrier by modes such as strand hot melt or sheet material hot pressing pore-formings;
(2) by sulphate reducing bacteria concentrated solution and polyvinyl alcohol solution mixing, and add calcium carbonate and be prepared into embedding liquid, polyvinyl alcohol mass concentration is 80-100g/L, and calcium carbonate mass concentration is 10-40g/L;
(3) according to polyvinyl alcohol-boric acid secondary crosslinking method, the polyvinyl alcohol embedding liquid mixing bacterium liquid in step (2) is uniformly coated on cancellated rectangular pieces carrier surface, after putting into saturated boric acid solution 1-3h, regulate boric acid solution pH to 8-10, crosslinked 3-24h, taken out, clean remained on surface material, obtain sulphate reducing bacteria sheet shape biological active filling material.
Sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier described above is placed in reactor by skeleton construction supporter, the process of sulfate wastewater treatment can be realized.Preferably above-mentioned multiple immobilization fixed type biological active filler based on mesh carrier is fixed on skeleton construction supporter abreast, then supporter is placed in reactor.
In carrier, the addition of polyvinyl alcohol (PVA) can suitably adjust as required, and this is prior art, and the mass percentage of preferably polyethylene alcohol (PVA) is 5%-10%.
A kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier is fixed, for water-treatment technology field by skeleton construction supporter.
The beneficial effect of the sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier of the present invention is mainly reflected in:
1. cancellated design, make embedding body form overall rivet clasp structure by mesh and carrier, embedding body difficult drop-off, make the biological active filling material resistance to overturning that obtains good, sulphate reducing bacteria bacterium is not easily run off, and can keep the sulfate reduction bacteria biomass of higher concentration in reactor;
2. cancellated rectangular pieces carrier, long is 0.1-3m, and wide is 0.1-3m, and can change length and the width of carrier according to the type of reactor and streamflow regime;
3. the sulphate reducing bacteria bag bacterium amount of immobilized biological activated filler is large, and SRB can set up flora advantage at short notice, and processing efficiency is high, good stability;
4. mesh carrier is main raw by polyethylene, polyvinyl chloride, polypropylene, ABS resin, with the addition of hydrophilizing agent PVA, improves the wetting ability of carrier, adds the intensity that carrier bonds with embedding body, improves the stability of filler entirety;
5. biological active filling material due to the existence of mesh skeleton structure make embedding body can implementation structure thickness less while do not lose again the adaptability that one-piece construction changes water treatment running environment, less thickness can realize higher mass-transfer efficiency and embed the higher utilization ratio of body, if make thickness like this with embedding body own material cannot realize good carrier performance in water technology processing unit;
6. biological active filling material is fixed by skeleton construction supporter fixed form, and filler can not run off with current, and treatment effect is stablized.The skeleton construction supporter of fixing filler is placed in reactor, the Effec-tive Function of sulfate wastewater treatment reactor can be realized;
7. the surface of fixed type biological active filler be all embedded body cover, in addition embed body structure thinner, be conducive to sulphate reducing bacteria contact substrate, avoid the waste of material simultaneously, effectively raise the utilization ratio of carrier filler.
Accompanying drawing explanation
Fig. 1 is sheet shape sulphate reducing bacteria biological active filling material schematic diagram;
Fig. 2 is I-I diagrammatic cross-section of Fig. 1;
Fig. 3 is II-II diagrammatic cross-section of Fig. 1;
Fig. 4 is fixed sulphate reducing bacteria biological active filling material schematic diagram.
1. twines in figure, 2. embed body, 3. skeleton construction supporter.
Embodiment
Below in conjunction with case study on implementation, the present invention is more specifically described, but embodiments of the present invention are not limited thereto.
Embodiment 1
1. the preparation of mesh carrier
Take polyvinyl chloride as main raw, add the water wetted material polyvinyl alcohol (PVA) that massfraction is 6%, the long 1.0m of rectangle chip carrier, wide 0.4m, its mesh form is square, and string diameter is 1mm.
2. the preparation of sulphate reducing bacteria concentrated solution
By the sulphate reducing bacteria bacteria suspension centrifugal concentrating after amplification cultivation, obtain 3.5 × 10
9the concentrated solution of the sulphate reducing bacteria of individual/mL.
3. embed the preparation of liquid
Weighing polyvinyl alcohol 5kg, adds 25L ultrapure water post-heating to 85 DEG C, dissolves 15min; The polyvinyl alcohol solution of dissolving taken out and reheats 5min after stirring, after stirring, being cooled to 31 ± 1 DEG C.25L polyvinyl alcohol solution and the 25L sulphate reducing bacteria concentrated solution mixing prepared, and add the calcium carbonate of 1kg, namely make 50L after stirring and embed liquid.
4. embed the combination of liquid and mesh carrier
Embedding liquid is uniformly coated on mesh carrier surface, guarantees that mesh carrier surface is all embedded liquid uniform fold.
5. the preparation of sulphate reducing bacteria biological active filling material
The mesh carrier smearing embedding liquid in step (4) is put into saturated boric acid solution, makes it be in submerged condition, leave standstill 3h, regulator solution pH to 9.0, standing 4h completes immobilization, cleaning, obtain sulphate reducing bacteria biological active filling material, this biological active filling material proportion is between 0.98-1.02.
6. the application of sulphate reducing bacteria biological active filling material
Sulphate reducing bacteria biological active filling material is placed in the square synthetic glass reactor of 500L by fixed mode, this reactor is long is 1m, wide is 0.5m, and height is 1m, and skeleton construction supporter is long is 0.9m, wide is 0.4m, height is 1.0m, the long 1.0m of fixed laminal filler, wide 0.4m, longitudinal fixed spacing is 10cm, installs 10 altogether.Former water is the sulfate-containing wastewater of artificial preparation, and water temperature is 24 DEG C-26 DEG C, and pH is 7.5-8.0, ORP≤-310mV.Using Sodium.alpha.-hydroxypropionate as organic carbon source, SO
4 2-concentration is about 1000 ± 10mg/L, ensures COD/SO
4 2->=2.The vitriol removal effect of assaying reaction device on time, water outlet detected result shows, reactor runs to the 7th day, sulfate reduction effect stability in reactor, water outlet SO
4 2-concentration is 80-112mg/L, and clearance remains on more than 88%, and reactor runs 1 year continuously, sulfate reduction effect stability, and the percentage of head rice of biological active filling material reaches 92%.
Claims (6)
1. the sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier, it is characterized in that: the active filler of immobilization fixed type biological is that cancellated rectangular pieces carrier is embedded by Containing Sulfate Reducing Bacteria embedding body, and the twine forming cancellated rectangular pieces carrier is formed overall rivet clasp structure by sulphate reducing bacteria embedding body by mesh embedding; Its preparation method comprises the following steps:
(1) based on polyethylene, polyvinyl chloride, polypropylene or ABS resin macromolecular material, add hydrophilizing agent PVA, make cancellated rectangular pieces carrier by strand hot melt or sheet material hot pressing pore-forming mode;
(2) by sulphate reducing bacteria concentrated solution and polyvinyl alcohol solution mixing, and add calcium carbonate and be prepared into embedding liquid;
(3) according to polyvinyl alcohol-boric acid secondary crosslinking method, the polyvinyl alcohol embedding liquid mixing bacterium liquid in step (2) is uniformly coated on cancellated rectangular pieces carrier surface, after putting into saturated boric acid solution 1-3h, regulate boric acid solution pH to 8-10, crosslinked 3-24h, taken out, clean remained on surface material, obtain sulphate reducing bacteria sheet shape biological active filling material.
2., according to a kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier of claim 1, it is characterized in that: the string diameter 0.5-2mm of mesh.
3. according to a kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier of claim 1, it is characterized in that: embedding body forms millimetre-sized membrane structure on netted slab organization.
4. according to a kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier of claim 1, it is characterized in that: described cancellated rectangular pieces carrier, long is 0.1-3m, and wide is 0.1-3m, and the mesh of described mesh carrier is circle, rhombus, square or rectangle.
5. any described in preparation claim 1-4, based on the method for the sulfate reduction bacteria immobilization fixed type biological active filler of mesh carrier, is characterized in that, comprise the following steps:
(1) based on polyethylene, polyvinyl chloride, polypropylene or ABS resin macromolecular material, add hydrophilizing agent PVA, make cancellated rectangular pieces carrier by strand hot melt or sheet material hot pressing pore-forming mode;
(2) by sulphate reducing bacteria concentrated solution and polyvinyl alcohol solution mixing, and add calcium carbonate and be prepared into embedding liquid;
(3) according to polyvinyl alcohol-boric acid secondary crosslinking method, the polyvinyl alcohol embedding liquid mixing bacterium liquid in step (2) is uniformly coated on cancellated rectangular pieces carrier surface, after putting into saturated boric acid solution 1-3h, regulate boric acid solution pH to 8-10, crosslinked 3-24h, taken out, clean remained on surface material, obtain sulphate reducing bacteria sheet shape biological active filling material.
6. a kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier is used for the purposes of water-treatment technology field as claimed in claim 1, it is characterized in that, described a kind of sulfate reduction bacteria immobilization fixed type biological active filler based on mesh carrier is fixed by skeleton construction supporter.
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| CN201410137192.0A CN104108799B (en) | 2014-04-04 | 2014-04-04 | A kind of sulfate reduction bacteria immobilization fixed type biological active filler preparations and applicatio based on mesh carrier |
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| CN201410137192.0A CN104108799B (en) | 2014-04-04 | 2014-04-04 | A kind of sulfate reduction bacteria immobilization fixed type biological active filler preparations and applicatio based on mesh carrier |
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| CN106636057A (en) * | 2016-11-30 | 2017-05-10 | 湖南大学 | Nutrient source immobilized sulfate reducing bacterium globules as well as preparation method and application thereof |
| CN108201788B (en) * | 2018-01-17 | 2021-03-26 | 清华大学 | Biological fluidized bed filler for waste gas purification and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888061A (en) * | 2006-07-25 | 2007-01-03 | 南开大学云南研究院 | Composite organic-inorganic material film as immobilized cell carrier |
| CN101134955A (en) * | 2007-08-02 | 2008-03-05 | 中国石油化工股份有限公司 | Solid composite micro-organism micro-balloon for organic contaminant biodegradation and method for preparing the same |
| CN103194437A (en) * | 2013-04-12 | 2013-07-10 | 北京工业大学 | Method for finishing bacterium fixation by utilizing polyvinyl alcohol-borate secondary crosslinking |
| CN103657399A (en) * | 2012-09-06 | 2014-03-26 | 中国石油化工股份有限公司 | Preparation method of macromolecule activated carbon composite filler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007020437A (en) * | 2005-07-13 | 2007-02-01 | Hitachi Plant Technologies Ltd | Integrally immobilizing carrier and method for producing the same |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888061A (en) * | 2006-07-25 | 2007-01-03 | 南开大学云南研究院 | Composite organic-inorganic material film as immobilized cell carrier |
| CN101134955A (en) * | 2007-08-02 | 2008-03-05 | 中国石油化工股份有限公司 | Solid composite micro-organism micro-balloon for organic contaminant biodegradation and method for preparing the same |
| CN103657399A (en) * | 2012-09-06 | 2014-03-26 | 中国石油化工股份有限公司 | Preparation method of macromolecule activated carbon composite filler |
| CN103194437A (en) * | 2013-04-12 | 2013-07-10 | 北京工业大学 | Method for finishing bacterium fixation by utilizing polyvinyl alcohol-borate secondary crosslinking |
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